AI 中文总结
本研究构建了符合核理论与多信使观测约束的有限温度物态方程集合，基于520万个模型的后验分布选出12个成员的排序集成，并生成配套热区不确定性的通用表格，为中子星相关数值模拟提供可靠输入。
AI 中文摘要
我们构建了一套适用于中子星并合与核坍缩超新星数值模拟的微观物理有限温度物态方程（EOSs），该集合符合核理论与多信使天文学的现代约束，且系统覆盖了允许物态方程的后验分布。这些物态方程基于简化的Skyrme泛函，其输入为核物质饱和性质，并通过一组参考密度下的声速拓展至超饱和密度区间。我们依据手征有效场论与微扰量子色动力学计算、引力波信号GW170817、NICER全部质量-半径测量结果，以及射电脉冲星J0348的夏皮罗延迟质量测量，为模型分配连续似然权重。在生成的520万个物态方程目录中，后验分布给出的结果为：$R_{1.4} = 11.8^{+0.8}_{-0.7}$ km，$Λ_{1.4} = 334^{+193}_{-113}$，$M_{\rm max}^{\rm TOV} = 2.18^{+0.22}_{-0.14}\\,M_\odot$（均为中位数及90%可信区间）。我们从该后验分布中选出一个含12个成员的排序集成，以一个基准中心物态方程为首，各成员单独具备合理性，且整体可覆盖中子星可观测量的后验分布范围。我们使用SROEOS代码为所有集成成员生成通用有限温度表格，每个表格均配有核子有效质量变体，用于覆盖集成热区的不确定性，相关结果将在发表后公开。
英文摘要
We construct a set of microphysical, finite-temperature equations of state (EOSs) for numerical simulations of neutron star mergers and core-collapse supernovae that is consistent with modern constraints from nuclear theory and multimessenger astronomy and systematically spans the posterior distribution of allowed EOSs. The EOSs are based on a simplified Skyrme functional whose inputs are nuclear matter saturation properties, extended to supra-saturation densities through the speed of sound at a set of reference densities. The models are assigned continuous likelihood weights from chiral effective field theory and perturbative quantum chromodynamics calculations, the gravitational wave signal GW170817, the complete set of NICER mass-radius measurements, and the Shapiro-delay mass measurement of the radio pulsar J0348. From the resulting catalogue of 5.2 million EOSs, the posterior yields $R_{1.4} = 11.8^{+0.8}_{-0.7}$ km, $Λ_{1.4} = 334^{+193}_{-113}$, and $M_{\rm max}^{\rm TOV} = 2.18^{+0.22}_{-0.14}\,M_\odot$ (medians with 90% credible intervals). From this posterior we select a ranked 12-member ensemble, headed by a fiducial, central EOS, whose members are individually plausible while jointly bracketing the posterior spread of neutron-star observables. For all ensemble members we generate general-purpose finite-temperature tables with the SROEOS code, each accompanied by nucleon effective-mass variants that bracket the ensemble's thermal-sector uncertainty, to be made publicly available upon publication.
Comments22 pages, 11 figures
